A nurse is teaching a group of older adults about the effects of aging on the cardiovascular system. Which of the following statements should the nurse include? (Select all that apply.).
“You may experience dizziness when you stand up quickly.”.
“Your blood pressure may drop when you are resting.”.
“Your heart may beat faster when you exercise.”.
“Your blood vessels may become stiffer and narrower.”.
“Your heart may skip some beats or have extra beats.”.
Correct Answer : A,D,E
The correct answer is A, D, and E.
Here is why:.
A. “You may experience dizziness when you stand up quickly.” This is true because aging causes the arteries and arterioles to become less elastic and less able to adjust the blood pressure quickly when the posture changes. This can lead to a drop in blood pressure when standing up, which can cause dizziness or fainting.
D. “Your blood vessels may become stiffer and narrower.” This is true because aging causes the walls of the arteries and arterioles to become thicker and stiffer, which reduces their compliance and increases the resistance to blood flow. This can lead to high blood pressure, atherosclerosis, and other cardiovascular diseases.
E. “Your heart may skip some beats or have extra beats.” This is true because aging causes changes in the electrical system of the heart, which can result in arrhythmias such as atrial fibrillation, premature ventricular contractions, or sinus bradycardia. These can cause irregular heartbeats that may be felt as palpitations or skipped beats.
B. “Your blood pressure may drop when you are resting.” This is false because aging does not cause a decrease in blood pressure at rest.
In fact, aging tends to increase the systolic blood pressure (the pressure when the heart contracts) due to the stiffening of the arteries. The diastolic blood pressure (the pressure when the heart relaxes) may remain normal or decrease slightly, resulting in a widened pulse pressure (the difference between systolic and diastolic pressures).
C. “Your heart may beat faster when you exercise.” This is false because aging does not cause an increase in heart rate during exercise.
In fact, aging tends to decrease the maximum heart rate that can be achieved during exercise due to the reduced responsiveness of the heart to adrenergic stimuli. The older heart also takes longer to recover after exercise.
Normal ranges for blood pressure are less than 120/80 mmHg for adults of any age. Normal ranges for heart rate are 60-100 beats per minute for adults of any age, but the maximum heart rate decreases with age according to the formula 220 minus age.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is A.“I may notice my hair becoming thinner and grayer as I age.” This statement reflects the common changes in hair that occur with aging, such as reduced melanin production, slower growth rate, and smaller hair strands.
Choice B is wrong because nails do not grow faster and stronger with age, but rather more slowly and may become dull and brittle.
Choice C is wrong because hair does not become more oily and curly with age, but rather drier and finer.
Choice D is wrong because nails do not become smoother and shinier with age, but rather yellowed and opaque.
Normal ranges for hair and nail growth vary depending on factors such as genetics, nutrition, health conditions, and environmental exposure.
However, some general estimates are:.
• Fingernails grow about 3 mm per month and toenails grow about 1 mm per month.
• Hair grows about 0.5 inches per month and loses about 50 to 100 strands per day.
• Hair color changes from about 30% gray at age 50 to about 50% gray at age 70.
Correct Answer is A
Explanation
The correct answer is A.
“I need to eat more foods that are rich in these nutrients.” This statement indicates that the client understands that low levels of iron, calcium and vitamin B12 can be caused by inadequate dietary intake of these nutrients.Iron, calcium and vitamin B12 are mainly found in animal-based foods, such as meat, eggs, milk and cheese.A diet lacking in these foods can lead to vitamin deficiency anemia, which is a condition where the body produces fewer and larger red blood cells that cannot carry enough oxygen.
Choice B is wrong because supplements may not be necessary or sufficient to correct these deficiencies.
Supplements can also interact with other medications or have side effects.The client should consult with their healthcare provider before taking any supplements.
Choice C is wrong because gastric acid inhibitors can actually worsen vitamin B12 deficiency.
Gastric acid inhibitors are medications that reduce the amount of stomach acid produced.However, stomach acid is needed to release vitamin B12 from food and to help it bind to a protein called intrinsic factor, which is essential for its absorption in the intestines.
Therefore, taking gastric acid inhibitors can impair vitamin B12 absorption and lead to deficiency.
Choice D is wrong because reducing dairy consumption can further lower calcium intake.
Dairy products are a good source of calcium, which is a mineral that helps build and maintain strong bones and teeth.Calcium deficiency can lead to osteoporosis, which is a condition where the bones become weak and brittle.
Normal ranges for iron, calcium and vitamin B12 in the blood are:.
• Iron: 50 to 170 micrograms per deciliter (mcg/dL) for men; 40 to 150 mcg/dL for women.
• Calcium: 8.5 to 10.2 milligrams per deciliter (mg/dL).
• Vitamin B12: 200 to 900 picograms per milliliter (pg/mL).
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